1. A nurse is caring for a 1-month-old infant who weighs 3500 g and is prescribed a dose of cephazolin 50 mg/kg by intermittent IV bolus three times daily. How many mg should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

175 mg

Correct Rationale: Convert gm to kg:

STEP 1: What is the unity of measurement to calculate? Kg

STEP 2: Set up the equation and solve for X.

1000 gm/1 kg=client's weight in gm/Xkg 1000 gm/1 kg = 3500 g/X kg X = 3.54 kg

STEP 3: Round, if necessary.

STEP 4: Reassess to determine whether the conversion to kg makes sense. If 1000 gm = 1 kg, it makes sense that 3500 gm = 3.5 kg.

Calculate Dose:

STEP 1: What is the unit of measurement to calculate? mg

STEP 2: Set up the equation and solve for X.

mg x kg/dose = X 50 mg x 3.5 kg = 175 mg

STEP 3: Round, if necessary.